[PATCH 5/6] arm: mach-k3: am62a: Fixup TF-A/OP-TEE reserved-memory node in FDT

[Andrew Davis]

The address we load TFA and OP-TEE to is configurable by
CONFIG_K3_{ATF,OPTEE}_LOAD_ADDR, but the DT nodes reserving this memory
are static. Fix that by updating this node when the loaded address
does not match the address in DT.

Signed-off-by: Andrew Davis <afd at ti.com>
---
 arch/arm/mach-k3/Makefile       |  1 +
 arch/arm/mach-k3/am62a7_fdt.c   | 16 ++++++++++++++++
 arch/arm/mach-k3/am62ax/Kconfig |  1 +
 3 files changed, 18 insertions(+)
 create mode 100644 arch/arm/mach-k3/am62a7_fdt.c

diff --git a/arch/arm/mach-k3/Makefile b/arch/arm/mach-k3/Makefile
index 42161376469..fdb442773e3 100644
--- a/arch/arm/mach-k3/Makefile
+++ b/arch/arm/mach-k3/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_SOC_K3_AM654) += am654_fdt.o
 obj-$(CONFIG_SOC_K3_J721E) += j721e_fdt.o
 obj-$(CONFIG_SOC_K3_J721S2) += j721s2_fdt.o
 obj-$(CONFIG_SOC_K3_AM625) += am625_fdt.o
+obj-$(CONFIG_SOC_K3_AM62A7) += am62a7_fdt.o
 endif
 ifeq ($(CONFIG_SPL_BUILD),y)
 obj-$(CONFIG_SOC_K3_AM654) += am654_init.o
diff --git a/arch/arm/mach-k3/am62a7_fdt.c b/arch/arm/mach-k3/am62a7_fdt.c
new file mode 100644
index 00000000000..d67f012a5dc
--- /dev/null
+++ b/arch/arm/mach-k3/am62a7_fdt.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+#include <asm/hardware.h>
+#include "common_fdt.h"
+#include <fdt_support.h>
+
+int ft_system_setup(void *blob, struct bd_info *bd)
+{
+	fdt_fixup_reserved(blob, "tfa", CONFIG_K3_ATF_LOAD_ADDR, 0x80000);
+	fdt_fixup_reserved(blob, "optee", CONFIG_K3_OPTEE_LOAD_ADDR, 0x1800000);
+
+	return 0;
+}
diff --git a/arch/arm/mach-k3/am62ax/Kconfig b/arch/arm/mach-k3/am62ax/Kconfig
index c5f1ef87126..bbd5497f2ae 100644
--- a/arch/arm/mach-k3/am62ax/Kconfig
+++ b/arch/arm/mach-k3/am62ax/Kconfig
@@ -13,6 +13,7 @@ config TARGET_AM62A7_A53_EVM
 	bool "TI K3 based AM62A7 EVM running on A53"
 	select ARM64
 	select BINMAN
+	select OF_SYSTEM_SETUP
 	imply BOARD
 	imply SPL_BOARD
 	imply TI_I2C_BOARD_DETECT
-- 
2.39.2